[ 17.117778][ T182] (udev-worker) (182) used greatest stack depth: 22696 bytes left [ 17.117799][ T182] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 17.117801][ T182] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 182, name: (udev-worker) [ 17.117802][ T182] preempt_count: 2, expected: 0 [ 17.117803][ T182] RCU nest depth: 0, expected: 0 [ 17.117804][ T182] locks held by (udev-worker)/182: 5, last CPU#1: [ 17.117806][ T182] #0: ffffffffa5e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 17.117818][ T182] #1: ffffffffa5f99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 17.117823][ T182] #2: ffffffffa5f99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 17.117828][ T182] #3: ffffffffa5e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 17.117832][ T182] #4: ffffffffa5e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 17.117836][ T182] irq event stamp: 152874 [ 17.117837][ T182] hardirqs last enabled at (152873): [] __down_trylock_console_sem+0x86/0xa0 [ 17.117840][ T182] hardirqs last disabled at (152874): [] console_emit_next_record+0x3f8/0x4f0 [ 17.117842][ T182] softirqs last enabled at (152810): [] netlink_release+0x17b/0xcf0 [ 17.117847][ T182] softirqs last disabled at (152808): [] netlink_release+0xd2/0xcf0 [ 17.117850][ T182] Preemption disabled at: [ 17.117850][ T182] [<0000000000000000>] 0x0 [ 17.117857][ T182] CPU: 1 UID: 0 PID: 182 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 17.117861][ T182] Tainted: [W]=WARN [ 17.117862][ T182] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.117864][ T182] Call Trace: [ 17.117865][ T182] [ 17.117867][ T182] dump_stack_lvl+0x6f/0xa0 [ 17.117874][ T182] __might_resched.cold+0x1fe/0x2c1 [ 17.117878][ T182] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 17.117883][ T182] ? __kmalloc_noprof+0xdb/0x760 [ 17.117888][ T182] __kmalloc_noprof+0x443/0x760 [ 17.117891][ T182] ? alloc_buf.isra.0+0x4b/0x260 [ 17.117898][ T182] ? do_raw_spin_unlock+0x59/0x250 [ 17.117900][ T182] alloc_buf.isra.0+0x4b/0x260 [ 17.117904][ T182] put_chars+0x1e1/0x2f0 [ 17.117907][ T182] ? __send_to_port+0x420/0x420 [ 17.117909][ T182] ? printk_get_next_message+0x2fe/0x7d0 [ 17.117912][ T182] ? rcu_read_lock_any_held+0x3c/0x90 [ 17.117916][ T182] ? validate_chain+0x38b/0xc20 [ 17.117920][ T182] hvc_console_print+0x292/0x780 [ 17.117923][ T182] ? __lock_acquire+0x518/0xc20 [ 17.117925][ T182] ? __lock_acquire+0x518/0xc20 [ 17.117930][ T182] ? hvc_write+0x3a0/0x3a0 [ 17.117933][ T182] ? rcu_is_watching+0x16/0xd0 [ 17.117936][ T182] ? lock_acquire+0x13c/0x160 [ 17.117940][ T182] console_emit_next_record+0x252/0x4f0 [ 17.117944][ T182] ? devkmsg_read+0x4e0/0x4e0 [ 17.117948][ T182] ? rcu_is_watching+0x16/0xd0 [ 17.117950][ T182] ? lock_acquire+0x13c/0x160 [ 17.117954][ T182] console_flush_one_record+0x46f/0x710 [ 17.117958][ T182] ? console_emit_next_record+0x4f0/0x4f0 [ 17.117960][ T182] ? __lock_acquire+0x518/0xc20 [ 17.117965][ T182] console_unlock+0xee/0x1f0 [ 17.117968][ T182] ? console_flush_one_record+0x710/0x710 [ 17.117970][ T182] ? rcu_is_watching+0x16/0xd0 [ 17.117972][ T182] ? lock_acquire+0x60/0x160 [ 17.117976][ T182] ? __down_trylock_console_sem+0x5e/0xa0 [ 17.117978][ T182] ? vprintk_emit+0x320/0x3e0 [ 17.117981][ T182] vprintk_emit+0x37c/0x3e0 [ 17.117984][ T182] ? wake_up_klogd_work_func+0x90/0x90 [ 17.117987][ T182] ? __lock_acquire+0x518/0xc20 [ 17.117990][ T182] _printk+0xc7/0x100 [ 17.117994][ T182] ? snapshot_read.cold+0x21/0x21 [ 17.117997][ T182] ? do_raw_spin_lock+0x131/0x280 [ 17.117999][ T182] ? __rwlock_init+0x150/0x150 [ 17.118003][ T182] ? do_raw_spin_lock+0x131/0x280 [ 17.118006][ T182] do_exit.cold+0x82/0x9c [ 17.118010][ T182] ? exit_notify+0x890/0x890 [ 17.118012][ T182] ? __lock_release.isra.0+0x69/0x1a0 [ 17.118015][ T182] ? rcu_is_watching+0x16/0xd0 [ 17.118018][ T182] do_group_exit+0xb8/0x370 [ 17.118021][ T182] __x64_sys_exit_group+0x3c/0x50 [ 17.118023][ T182] x64_sys_call+0x1567/0x1570 [ 17.118025][ T182] do_syscall_64+0xff/0x530 [ 17.118029][ T182] ? exc_page_fault+0xee/0x100 [ 17.118032][ T182] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.118034][ T182] RIP: 0033:0x7fcb605d41b8 [ 17.118037][ T182] Code: Unable to access opcode bytes at 0x7fcb605d418e. [ 17.118038][ T182] RSP: 002b:00007ffc50b56368 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 17.118041][ T182] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcb605d41b8 [ 17.118042][ T182] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 17.118043][ T182] RBP: 00007ffc50b564f0 R08: 0000555fa62bbae8 R09: 0000000000000000 [ 17.118044][ T182] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 17.118045][ T182] R13: 00007fcb5fe32050 R14: 00007fcb60b05d9e R15: 0000555fa612af90 [ 17.118051][ T182]